Koss PortaPro Stereo Headphones

The PortaPro stereo headphones from Koss provide high-quality audio in a vintage design Unchanged since 1984 - the PortaPro offers a unique and recognizable look with performance to match The headphones use rigid Mylar drivers to minimize distortion and provide accurate reproduction - while NdFeB magnet structures deliver strong volume levels Oxygen-free copper voice coils improve signal transmission for clean - clear sound The adjustable headband conforms to virtually any head size - while the foam earpads provide comfort and also let you maintain awareness of your surroundings The cable provides plenty of slack and has a standard 35mm mini plug for connecting to MP3 players - CD players - and much more

Features: Includes Carrying Case, Foam Earpads, OFC Voice Coils, NdFeB Magnet Structures, Mylar Diaphragms, Vintage Design, Lifetime Warranty

Quantity: 1

Wearing Style: Dual Ear with HeadbandFoldable: Yes Earpiece Swivel: No

Earpiece Design: On-Ear (Supra-Aural)

Open/Closed-Back: Semi-Open-Back

Sound Field: Stereo

Number of Drivers: 1 per Earpiece

Driver Type: Dynamic

Impedance: 60 Ohms

Active Noise Cancellation: No

Frequency Response: 15 Hz to 25 kHz

Sensitivity: 101 dB SPL at 1 kHz / 1 mW

Built-In Controls: No

Built-In Mic: No

Wireless: No

Wired Audio Connector: 1x 1/8-inch / 3.5 mm TRS

Cable Design: Non-Detachable / Straight

Audio Connector to Earpiece: Hard-Wired

Cable Length: 4' / 1.2 m

Charging Input: Passive Headphones-No Power Required

Color: Black / Silver

Environmental Resistance: No